IOS uitableview multi-select Delete feature

Last Update:2015-10-10 Source: Internet

Author: User

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Uitbableview as a list of information, in addition to the features displayed, and sometimes used to delete, such as shopping carts, favorites list and so On.Single-line Delete function can directly use the System's own delete function, when the horizontal swipe cell, the right side of the red delete button, Click Delete the current Cell. or let the table enter the editing state, click on the left side of the red button, the right side appears delete button, delete, as Shown. Single-line Delete has been explained in the previous article, you need to Check.Multi-select Delete is to click the edit button, let the table into the editing state, a small circle on the left side of each line, when clicking on the line, you can select the row or uncheck the row, when the button to confirm the deletion of the selected row will be Deleted.To use the system multi-select Delete feature: <blockquote> <blockquote> 1, let TableView into the editing state, that is, set its editing yes 2, return to the editing mode, that is, to implement Uitableviewdelegate in the Tableview:editingstyleforrowatindexpath: method, Return Uitableviewcelleditingstyledelete in the inside | Uitableviewcelleditingstyleinsert. If not implemented, the default is to return to delete mode 3, the realization uitableviewdelegate in the tableview:didselectrowatindexpath: and Tableview:diddeselectrowatindexpath: method. Make changes to the data in the selected product collection 4, Click delete, will select the product data from the list corresponding to the Total product collection removed, and refresh the Interface. </blockquote> </blockquote>Code:<pre>//Goods.h//Shopping Cart Form Delete////Created by Jerei on 15-1-7.//Copyright (c) 2015 Jerei. All Rights Reserved.//#import<Foundation/Foundation.h>@interfacegoods:nsobject@property (nonatomic, copy) nsstring*icon; @property (nonatomic, copy) nsstring*name: @property (nonatomic, copy) nsstring*details;-(ID) Initwithdic: (nsdictionary*) dic;+(ID) Goodswithdic: (nsdictionary*) dic;@end////GOODS.M//Shopping Cart Form Delete////Created by Jerei on 15-1-7.//Copyright (c) 2015 Jerei. All Rights Reserved.//#import "Goods.h"@implementationGoods-(ID) Initwithdic: (nsdictionary *) dic{if(self =[super Init]) {self.icon= [dic objectforkey:@"icon"]; Self.name= [dic objectforkey:@"name"]; Self.details= [dic objectforkey:@"Details"]; } returnself ;}+(ID) Goodswithdic: (nsdictionary *) Dic{Goods*good =[[Goods alloc] initwithdic:dic]; returngood;}@end////VIEWCONTROLLER.M//Jrtableview multi-select Delete////Created by jerehedu on 15/6/11.//Copyright (c) 2015 JEREHEDU. All Rights Reserved.//#import "ViewController.h"#import "Goods.h"@interfaceViewcontroller () <uitableviewdatasource, uitableviewdelegate>{uitableview*_tableview;//ListNsmutablearray*_goodsary;//Product ArrayNsmutablearray*_selectarray;//the selected arrayUIButton*_editbtn;//Edit Button}@end@implementationViewcontroller- (void) Viewdidload {[super viewdidload]; //Initialize the selected array_selectarray =[nsmutablearray array]; //Setup Interface[self settheinterface]; //Fetch Data[self getgoodsinfofromfile];}#pragmaMark-fetch data-(void) Getgoodsinfofromfile{nsarray*ary = [nsarray Arraywithcontentsoffile:[[nsbundle mainbundle] pathforresource:@"shoppinggoodslist"OfType:@"plist"]]; //Save the data to the model object and then save the object in the array_goodsary =[nsmutablearray array]; for(intI=0; i<ary.count; i++) {Goods*good =[Goods goodswithdic:ary[i]]; [_goodsary addobject:good]; }}#pragmaMark-initialize interface-(void) settheinterface{//BGUiimageview *imgview = [[uiimageview alloc] initwithframe:cgrectmake (0,0, self.view.frame.size.width, self.view.frame.size.height)]; Imgview.image= [UIImage Imagenamed:@"Redup.png"]; [self.view addsubview:imgview]; //Add titleUILabel *titlelabel = [[UILabel alloc] initwithframe:cgrectmake (0, -, self.view.frame.size.width, -)]; Titlelabel.text=@"Shopping Cart"; Titlelabel.textalignment=nstextalignmentcenter; Titlelabel.textcolor=[uicolor whitecolor]; [self.view addsubview:titlelabel]; //Add Edit button_EDITBTN =[UIButton buttonwithtype:uibuttontypecustom]; _editbtn.frame= CGRectMake (self.view.frame.size.width- -, -, -, the); [_EDITBTN settitle:@"Edit"forstate:uicontrolstatenormal]; [_EDITBTN settitle:@"Delete"forstate:uicontrolstateselected]; _editbtn.titlelabel.font= [uifont systemfontofsize: the]; _editbtn.backgroundcolor= [uicolor Colorwithred:0.8Green0.8Blue0.8Alpha0.5]; [self.view addsubview:_editbtn]; [_EDITBTN addtarget:self action: @selector (clickeditbtn:) forcontrolevents:uicontroleventtouchupinside]; //Add TableView_tableview = [[uitableview alloc] initwithframe:cgrectmake (0, -, self.view.frame.size.width, self.view.frame.size.height- -)]; _tableview.datasource=self ; _tableview.Delegate=self ; [self.view addsubview:_tableview]; _tableview.rowheight= the;}#pragmaThe mark data source returns a few lines-(nsinteger) tableView: (uitableview *) TableView numberofrowsinsection: (nsinteger) section{return_goodsary.count;}#pragmaMark per line display content-(uitableviewcell*) tableView: (uitableview *) tableView cellforrowatindexpath: (nsindexpath *) indexpath{StaticNSString *idgood =@"Goods"; UITableViewCell*cell =[tableView dequeuereusablecellwithidentifier:idgood]; if(cell==Nil) {cell=[[uitableviewcell alloc] initwithstyle:uitableviewcellstylesubtitle reuseidentifier:idgood]; Cell.detailTextLabel.numberOfLines=6; Cell.detailTextLabel.textColor=[uicolor browncolor]; } Goods*good =_goodsary[indexpath.row]; Cell.imageView.image=[UIImage imageNamed:good.icon]; Cell.textLabel.text=good.name; Cell.detailTextLabel.text=good.details; returncell;}#pragmaMark selected boc-(void) tableView: (uitableview *) tableView didselectrowatindexpath: (nsindexpath *) indexpath{if(!_tableview.editing)return; Goods*good =[_goodsary objectAtIndex:indexPath.row]; if(![_selectarray Containsobject:good]) {[_selectarray addobject:good]; }}#pragmaMark Uncheck line-(void) tableView: (uitableview *) tableView diddeselectrowatindexpath: (nsindexpath *) indexpath{if(!_tableview.editing)return; Goods*good =[_goodsary objectAtIndex:indexPath.row]; if([_selectarray containsobject:good]) {[_selectarray removeobject:good]; }}#pragmaMark clicks the edit Button-(ibaction) clickeditbtn: (UIButton *) Sender {BOOL flag=_tableview.editing; if(flag) {//deleted Actions//index of product to be deletedNsmutablearray *indexarray =[nsmutablearray array]; for(Goods *goodinch_selectarray) {nsinteger Num=[_goodsary indexofobject:good]; Nsindexpath*path = [nsindexpath Indexpathforrow:num insection:0]; [indexarray addobject:path]; } //Modifying the data Model[_goodsary removeobjectsinarray:_selectarray]; [_selectarray removeallobjects]; //Refresh[_tableview Deleterowsatindexpaths:indexarray withrowanimation:uitableviewrowanimationfade]; _tableview.editing=NO; _editbtn.selected=NO; }Else { //Start selecting Rows[_selectarray removeallobjects]; _tableview.editing=YES; _editbtn.selected=YES; }}#pragmaMark returns to edit mode, default to delete mode-(uitableviewcelleditingstyle) tableView: (uitableview *) tableView Editingstyleforrowatindexpath :(nsindexpath *) indexpath{returnUitableviewcelleditingstyledelete |uitableviewcelleditingstyleinsert;}@end</pre>Jerry Education Source:http://www.cnblogs.com/jerehedu/ Copyright Notice: The copyright of this article is Yantai Jerry Education Technology co., Ltd. and the blog Park is shared, welcome reprint, but without the consent of the author must retain this paragraph statement, and in the article page obvious location to the original link, otherwise reserves the right to pursue legal responsibility. Technical Consultation:IOS uitableview multi-select Delete feature

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